Surface Casing Pressure As an Indicator of Well Integrity Loss and Stray Gas Migration in the Wattenberg Field, Colorado.

@article{Lackey2017SurfaceCP,
  title={Surface Casing Pressure As an Indicator of Well Integrity Loss and Stray Gas Migration in the Wattenberg Field, Colorado.},
  author={Greg Lackey and Harihar Rajaram and Owen A. Sherwood and Troy L Burke and Joseph N. Ryan},
  journal={Environmental science & technology},
  year={2017},
  volume={51 6},
  pages={3567-3574}
}
The risk of environmental contamination by oil and gas wells depends strongly on the frequency with which they lose integrity. Wells with compromised integrity typically exhibit pressure in their outermost annulus (surface casing pressure, SfCP) due to gas accumulation. SfCP is an easily measured but poorly documented gauge of well integrity. Here, we analyze SfCP data from the Colorado Oil and Gas Conservation Commission database to evaluate the frequency of well integrity loss in the… CONTINUE READING